<template>
    <div class="header">
        <div class="nav-topbar">
            <div class="container">
                <div class="topbar-menu">
                    <a href="javascript:">小米商城</a>
                    <a href="javascript:">MUI</a>
                    <a href="javascript:">云服务</a>
                    <a href="javascript:">协议规则</a>
                </div>
                <div class="topbar-user">
                    <a href="javascript:" v-if="username">{{username}}</a>
                    <a href="javascript:" v-if="!username" @click="login">登录</a>
                    <a href="javascript:" v-if="username">我的订单</a>
                    <a href="javascript:" v-if="!username">注册</a>
                    <a href="javascript:" class="my-cart" @click="goToCart">
                        <span class="icon-cart"></span>
                        购物车
                    </a>
                </div>
            </div>
        </div>
        <div class="nav-header">
            <div class="container">
                <div class="header-logo">
                    <a href="/#/index"></a>
                </div>
                <div class="header-menu">
                    <div class="item-menu">
                        <span>小米手机</span>
                        <div class="children">
                            <ul>
                                <li class="product" v-for="(item,index) in phoneList" :key="index">
                                    <a :href="'/#/product/'+item.id" target="_blank">
                                        <div class="pro-imgs">
                                            <img :src="item.mainImage" :alt="item.subtitle"/>
                                        </div>
                                        <div class="pro-name">{{item.name}}</div>
                                        <div class="pro-price">{{item.price|currency}}</div>
                                    </a>
                                </li>
                            </ul>

                        </div>
                    </div>

                    <div class="item-menu">
                        <span>红米RedMi</span>
                    </div>

                    <div class="item-menu">
                        <span>小米电视</span>
                        <div class="children">
                            <ul>
                                <li class="product">
                                    <a href="" target="_blank">
                                        <div class="pro-imgs">
                                            <img src="../assets/nav-img/nav-3-1.jpg"/>
                                        </div>
                                        <div class="pro-name">小米壁画电视</div>
                                        <div class="pro-price">6999元</div>
                                    </a>
                                </li>
                                <li class="product">
                                    <a href="" target="_blank">
                                        <div class="pro-imgs">
                                            <img src="../assets/nav-img/nav-3-2.jpg"/>
                                        </div>
                                        <div class="pro-name">小米全面屏</div>
                                        <div class="pro-price">1999元</div>
                                    </a>
                                </li>
                                <li class="product">
                                    <a href="" target="_blank">
                                        <div class="pro-imgs">
                                            <img src="../assets/nav-img/nav-3-3.png"/>
                                        </div>
                                        <div class="pro-name">小米电视4A</div>
                                        <div class="pro-price">6999元</div>
                                    </a>
                                </li>
                                <li class="product">
                                    <a href="" target="_blank">
                                        <div class="pro-imgs">
                                            <img src="../assets/nav-img/nav-3-4.jpg"/>
                                        </div>
                                        <div class="pro-name">小米电视4A plus</div>
                                        <div class="pro-price">19999元</div>
                                    </a>
                                </li>
                                <li class="product">
                                    <a href="" target="_blank">
                                        <div class="pro-imgs">
                                            <img src="../assets/nav-img/nav-3-5.jpg"/>
                                        </div>
                                        <div class="pro-name">小米电视4A pro</div>
                                        <div class="pro-price">27999元</div>
                                    </a>
                                </li>
                                <li class="product">
                                    <a href="" target="_blank">
                                        <div class="pro-imgs">
                                            <img src="../assets/nav-img/nav-3-6.png"/>
                                        </div>
                                        <div class="pro-name">查看全部</div>
                                        <div class="pro-price">查看全部</div>
                                    </a>
                                </li>
                            </ul>

                        </div>
                    </div>
                </div>
                <div class="header-search">
                    <div class="wrapper">
                        <input type="text" name="keyword"></input>
                        <a href="javascript:"></a>
                    </div>
                </div>
            </div>
        </div>
    </div>
</template>

<script>
    export default {
        name:"nav-header",
        data(){
            return{
                username:"",
                phoneList:[]
            }
        },
        mounted() {
            this.getProductList();
        },
        filters:{
          currency(val){
              if(!val) return '0.00';
              return val.toFixed(2)+'元'
          }
        },
        methods:{
            login(){
                this.$router.push('/login');
            },
            getProductList(){
                this.axios.get('/products',{
                    params:{
                        categoryId:'100012',
                    }
                }).then((res)=>{
                    if(res.list.length > 6){
                        this.phoneList = res.list.slice(0,6);
                    }else{
                        this.phoneList = res.list;
                    }
                })
            },
            goToCart(){
                this.$router.push({name:'cart'});
            }
        }
    }
</script>

<style lang="scss">
    @import "../assets/scss/base";
    @import "../assets/scss/config";
    .header{
        .nav-topbar{
            height: 39px;
            line-height: 39px;
            background-color: #333333;
            color: #B0B0B0;
            .container{
                display: flex;
                justify-content: space-between;
                align-items: center;
                a{display: inline-block; color: #B0B0B0;margin-right: 17px;}
                .my-cart{
                    width: 110px;
                    background-color: #FF6600;
                    text-align: center;
                    color: #ffffff;
                    .icon-cart{
                        display: inline-block;
                        width: 16px;
                        height: 12px;
                        background:url("../assets/icon/icon-cart.png") no-repeat center;
                        background-size: contain;
                        margin-right: 4px;
                    }
                }
            }
        }
        .nav-header{
            .container{
                position: relative;
                height: 112px;
                display: flex;
                justify-content: space-between;
                align-items: center;
                .header-logo{
                    display: inline-block;
                    width: 55px;
                    height: 55px;
                    background-color: #FF6600;
                    a{
                        display: inline-block;
                        width:110px;
                        height: 55px;
                        &:before{
                            content:'';
                            display: inline-block;
                            width: 55px;
                            height: 55px;
                            background: url("../assets/icon/mi-logo.png") no-repeat center;
                            background-size: 55px;
                            transition: margin .2s;
                        }
                        &:after{
                            content:'';
                            display: inline-block;
                            width: 55px;
                            height: 55px;
                            background: url("../assets/icon/mi-home.png") no-repeat center;
                            background-size: 55px;
                        }
                        &:hover:before{
                            margin-left: -55px;
                            transition: margin .2s;
                        }
                    }
                }
                .header-menu{
                    width: 630px;
                    display: inline-block;
                    padding-left: 209px;
                    .item-menu{
                        display: inline-block;
                        color: #333333;
                        font-weight: bold;
                        font-size: 16px;
                        line-height: 112px;
                        margin-right: 20px;
                        span{
                            cursor: pointer;
                        }
                        &:hover{
                            color: $colorA;
                            .children{
                                height: 220px;
                                opacity: 1;
                            }
                        }
                        .children{
                            position: absolute;
                            top:112px;
                            left: 0;
                            width: 1226px;
                            height: 0;
                            opacity: 0;
                            overflow: hidden;
                            border-top: 1px solid #e5e5e5;
                            box-shadow: 0px 7px 6px 0px rgba(0,0,0,0.11);
                            z-index: 100;
                            transition: height .5s;
                            .product{
                                position: relative;
                                float: left;
                                width: 16.6%;
                                height: 220px;
                                font-size: 12px;
                                line-height: 12px;
                                text-align: center;
                                a{
                                    display: inline-block;
                                }
                                img{
                                    height: 110px;
                                    width: auto;
                                    margin-top: 26px;
                                }
                                .pro-imgs{
                                    height: 137px;
                                }
                                .pro-name{
                                    font-weight: bold;
                                    margin-top: 19px;
                                    margin-bottom: 8px;
                                    color:$colorB;
                                }
                                .pro-price{
                                    color: $colorA;
                                }
                                &:before{
                                    content:'';
                                    position: absolute;
                                    top:28px;
                                    right:0;
                                    border-left: 1px solid #d7d7d7;
                                    height: 100px;
                                }
                                &:last-child:before{
                                    display: none;
                                }
                            }
                        }
                    }
                }
                .header-search{
                    width: 319px;
                    .wrapper{
                        height: 50px;
                        border: 1px solid #E0E0E0;
                        display: flex;
                        align-items: center;
                        input{
                            border:none;
                            border-right: 1px solid #E0E0E0;
                            width: 264px;
                            height: 50px;
                            padding-left: 14px;
                        }
                        a{
                            display: inline-block;
                            width: 18px;
                            height: 18px;
                            background: url("../assets/icon/icon-search.png") no-repeat center;
                            background-size: contain;
                            margin-left: 10px;
                        }
                    }
                }
            }
        }
    }
</style>
